The guide it is good map automatic creation processing mode

摘要

PURPOSE: To automatically prepare an easily visible guide map with a computer by calculating the area of all buildings in an area being an object in accordance with a contraction scale rate, and leaving that of prescribed size or more as a mark object. ;CONSTITUTION: A guide map generation control part 1 requests the extraction of a mark object from a reduced map to a mark object extracting part 3. The mark object extracting part 3 allows a building, etc., closed graphic extracting part 4 to extract a closed graphic which can become a mark object from the map, calls a closed graphic area calculating part 5, and extracts a building, etc., of size, which can become the mark object. Also, by requesting to a building, etc., name character size deciding part 6, the size of a name character of a building which does not become the mark object by a decision due to an area is decided, and the building, etc., of a character display reference value or above are extracted as the mark object. The guide map generation control part 1 generates a guide map by deleting other building information than the extracted mark object, and outputs the guide map to a printer, etc., by requesting a map output control part 7.;COPYRIGHT: (C)1993,JPO&Japio